brotli/python/tests/compress_test.py

53 lines
1.9 KiB
Python

# Copyright 2016 The Brotli Authors. All rights reserved.
#
# Distributed under MIT license.
# See file LICENSE for detail or copy at https://opensource.org/licenses/MIT
import unittest
from . import _test_utils
import brotli
class TestCompress(_test_utils.TestCase):
VARIANTS = {'quality': (1, 6, 9, 11), 'lgwin': (10, 15, 20, 24)}
def _check_decompression(self, test_data, **kwargs):
# Only dictionary is supported as a kwarg to brotli.decompress.
if 'dictionary' in kwargs:
kwargs = {'dictionary': kwargs['dictionary']}
else:
kwargs = {}
# Write decompression to temp file and verify it matches the original.
temp_uncompressed = _test_utils.get_temp_uncompressed_name(test_data)
temp_compressed = _test_utils.get_temp_compressed_name(test_data)
original = test_data
with open(temp_uncompressed, 'wb') as out_file:
with open(temp_compressed, 'rb') as in_file:
out_file.write(brotli.decompress(in_file.read(), **kwargs))
self.assertFilesMatch(temp_uncompressed, original)
def _compress(self, test_data, **kwargs):
temp_compressed = _test_utils.get_temp_compressed_name(test_data)
with open(temp_compressed, 'wb') as out_file:
with open(test_data, 'rb') as in_file:
out_file.write(brotli.compress(in_file.read(), **kwargs))
def _test_compress(self, test_data, **kwargs):
self._compress(test_data, **kwargs)
self._check_decompression(test_data, **kwargs)
def _test_compress_custom_dictionary(self, test_data, **kwargs):
with open(test_data, 'rb') as in_file:
dictionary = in_file.read()
kwargs['dictionary'] = dictionary
self._compress(test_data, **kwargs)
self._check_decompression(test_data, **kwargs)
_test_utils.generate_test_methods(TestCompress, variants=TestCompress.VARIANTS)
if __name__ == '__main__':
unittest.main()